3. Driving Guide
3.2.3
Electronic Stability Program (ESP)
ESP can effectively reduce the risk of vehicle
sliding.
Operating Principle of ESP System
ESP system confirms the driver's driving intention
according to steering wheel angle and speed, and
constantly compares the information with actual
driving condition. If the vehicle deviates from the
normal running route (e.g., side skidding), the
ESP will correct it by applying a brakeforce to the
appropriate wheels.
The ESP can be used to recover the stable driving
state through the twisting force generated by
brakeforce. If the vehicle tends to turn excessively,
the system mainly exerts the brakeforce on the
front wheel at the outer bending. If the vehicle
tends to turn insufficiently (that is, the turning
radius is excessive), the system mainly exerts the
brakeforce on the rear wheel of the inner bending.
When the vehicle is not equipped with ESP, it
deviates from the normal driving route.
A vehicle equipped with ESP can modify the
brakeforce according to the side-sliding angle to
prevent the vehicle from deviating its driving route.
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